Home / 1,291,967,426.94-1,782,679,868.82-727,364,508.54

Finding the Fourth Proportional to 1,291,967,426.94, 1,782,679,868.82 and 727,364,508.54

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Solution

The fourth proportional to 1,291,967,426.94, 1,782,679,868.82 and 727,364,508.54 is: 1,003,630,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,967,426.94 : 1,782,679,868.82 = 727,364,508.54 : x
  2. Step 2: Convert to fraction form
    1,291,967,426.94/1,782,679,868.82 = 727,364,508.54/x
  3. Step 3: Cross multiply
    1,291,967,426.94x = 1,782,679,868.82 × 727,364,508.54
  4. Step 4: Simplify right side
    1,291,967,426.94x = 1,296,658,066,668,410,880
  5. Step 5: Solve for x
    x = 1,296,658,066,668,410,880/1,291,967,426.94
  6. Step 6: Final answer
    x = 1,003,630,617.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.